Yeah, that's rather pricey service. I wonder how quick/easy/live the tracking data is to Police while trying to find the bike, and I also wonder what level of search the Police would maintain, for how long??
*I* am unlikely to keep a bike that was stolen and recovered.
If someone stole my bike while I was on a ride, I believe it is highly unlikely it would be recovered within minutes even with a tracker. If 'hours' have elapsed, I'd have to end my trip and find a way home.
If someone stole it, they're likely to:
1) be desperate, needing a getaway vehicle without any care about it,
2) thrash it for a joy ride for an hour or two and then dump it,
or
3) take it directly to a chop shop.
#1 and #2 are odd...the thief would have to have a key or have hotwired it to ride it away. But even if they've your key, what is damaged on the bike (like the drivetrain or clutch)? Perhaps repairable and insured, but *I* don't have a bike so I can do maintenance & repairs (nor do I trust dealer repairs--BTDT). Depending on circumstances of it's recovery and condition, I'd be wondering about it's long term reliability. If recovered and in descent shape, I'd likely sell it. (But that's just me.)
#3 means it was hauled away, likely without much care. Thinking about our type of bikes, they're too reliable and too uncommon, so do theft rings target STs (or RTs or FJRs or ...)?
In short, *I* wouldn't bother with a tracker on a bike (especially given those monthly service rates). Perhaps I could rationalize it if the up-front device cost was reasonable and included lifetime tracking at no added cost.